28651399

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{709}}^1$

素因数の和:990

約数の個数: 16

約数和(自身を含む): 34352640

約数和(自身を除く): 5701241

約数列:

[1, 7, 23, 161, 251, 709, 1757, 4963, 5773, 16307, 40411, 114149, 177959, 1245713, 4093057, 28651399]

約数ペア:

[(1, 28651399), (7, 4093057), (23, 1245713), (161, 177959), (251, 114149), (709, 40411), (1757, 16307), (4963, 5773)]